Saw-filing machine



Nov. 17,1925. A 1,562,305

G. DECHEFF sAw FILING MACHINE Filed Jan. 31, 1925 2 Sheets-Sheet 1 IlllllllllIllllllllllllllllllllllllll|||l||||||ll lllll llllllll ...33

B0-dr,

Nov. 17l 192s. 1,562,305

v G. pEcHEFF SAW FILING MACHINE Filed Jan. 51, 1925 2 Sheets-Sheet 2 Z7 l f ekff Patented Nov. 17, 1,925., Y

unirsi) germes GEORGE nEcnEEE or DE'rEorr, ivircnIenE.

saw-Finnen MACHINE.

nppnationiea aanuary si, 4,1925. serialV No. 6,113. c

To all whom it may concern.'

Be it known-'that I, vGEORGE DEGHEFE, a citizen of the United States, residing at De- .troit, in the county 'of lVayne and Stateof Michigan, `have invented certain new and useful Improvements in Saw-Filing Machines, of which the .following is a' specification, reference being -had to the accompanying drawings. i Y 4 This invention relates to limproveiirents .in saw 'filing machines and itis an object of the invention to Aprovide a device of Athis kind embodying novel and improved means whereby the saw may be effectively held or clamped in desired position.

Another object of the `invention vis to provide a ynovel iandimpro'ved device of this 4general character Whichmay be adjusted in a manner wherebyl the file kor thelike may be adjusted in a direction substantially'tlie same as'the `line lof the toothed edgeoffthe saw blade.

The invention also has for kan object tov -provide a novel' and y improved :device of this kind including a holding or clamping structure together with `a Vcarrier slfidably` supported by said structure, the carrier being adapted tosupport .a saw 'file or other implement, together with .ineans for adjusting the carrier lin accordance with the spac device rendered simpler, less expensive and otherwise more convenientand advantageous v for use, as will be'hereinafter more fully set forth.

rllhe novel features of my invention willA hereinafter be definitely claimed.

In order that my invention Vmay ybe. .the

better understood, I will -now pro'ceedfto def scribe the sanie'with reference to the aocoinpanying dra-wings, wherein:-

.Figure l is a view .in topv plan illustrat` ing'a -saw filing `machine vconstructed in ae;

cordancewith an einbodiinentjof my-invention ywith portions broken away; v. j,

Figure 2 .is a view ini-front elevation-off the structure .asillustrated an Fig-ure 1';A

Figurev 34s ja view in perspective of the elongated .member or bar attached to 'the base as herein set forth; j j

Figure l is aview in'yperspective .of `une. n

of the saw lgauges as herein employed;

Figa-re I5 Iis a sectional view taken sub1` stantially kon the 4line .5#--5V foffligure 1 7.;

`liligure 6 is avierwuin perspective lof one ofthe-vend supporting .members or brackets;

' Figure 7 is 4a 'fragmentary sectional viewtaken longitudinally ofV` the base vasxherein employed and villustrating in part theineans for iiexin'g or bending such base;

Figure 8 is a sectional view takensubstan-j i tial'ly. onitlie line S-SX-of Figure l; l

' Figure -9 is :afragmentary view'in velevaY tion i-lflustratingthe use of a saw set, y 1.

As disclosed in Athe Vaccoinpaiiying.draw-f,

ings, .il :denotes ea base vj orefera'bly .of wood, and said base beingl relatively long .and .provided iat its opposite ends with theupstanding plates or lbrackets 2. v .An `elongated .rod

upper portions of thebraOketsQ, each of said brackets being providec'l with .an opening 4l to i.receive an end portion of the yrod 'The rod -3 Ais reli'ectively maintained in appliedposition through the medium-of .abinding screw f5 threadedrfrom above through -one therealong a ,plurality of /circumferentially spaced lseries of'notclies 6. The notches of each series being spaced in V.a 'direction lengthwise of the rod 3 and ,each seriesof notches .is dierently spaced than .the ynotches-of the other series. The notchesof v3 has its end portions 'disposed'through fthe.

f of the brackets .2 andfhavlingrequisite coiij tact with the adjacent inserted end por?. tion of the rodv 3. The rod 3 has disposed each lseries are spaced inV accordance with the .given size or point of the teethof a saw vfor ka purpose which will hereinafter ybe more particularly referred to,`

Resting upon .the upper Asurface -of the base l and extending along ha" lon'gitm'iinal marginal portion :thereof is a'nietallic me'ml` ber or strap .7 provided atl its opposite end.

yportions with the yd epe'nding,ilanges8. The member or strap Vmay be heldinfapplied position inlany desired manner but. as -liereing bolt 11 is adapted to begselectively en-- gaged in accordance with the size of the saw to bel filed, reset or the like.

Each of the clamping bolts 11 has slidably disposed through the head thereof an operating handle 14 to facilitate` effective manipulation of the clamping bolt.

In practice, the saw to be filed or the like has its toothed marginal portion inserted between the forward edge of the base 1 and the bar with the teeth upwardly disposed.

In order to assure the proper placing of the saw the Oau 'es 15 are arranved ad'acent the opposite ends of the member or strapr7, each of saidgauges 'being pivotally held to the member or strap 7 by a screw 16. When each of the gauges 15 is disposed in a direction lengthwise of the member or strap 7, the same is provided with a laterally div i'ected lug 17 which is adapted to bereceived accordance with the size of the saw.

between a pair of'adjacent teeth of the saw Vand thereby assure the requisite and desired placing of the saw. After the saw' has been properly placed and clamped by the bar 10, the gauges 15 are sprung inwardly into an inoperative position. i

It is to be noted that one end portion of the member or strap 7 is provided with a 4series of spaced threaded openings 1S with which the holding screw 16 `of one of the gauges 15 is adapted to be selectively engaged so that such gauge may be adjusted with respect to the member or strap 7 in The bar 10 is constantly `urged or forced outwardly by thecoil springs 19 interposed between the opposite end portions of the base 1 and the bar 10. These springs 19 are of such tension that when thev clamping bolts v 11 are retracted to effect a release of an applied saw, thejbar 1() may be automatically forced outwardly to facilitate such removal of the saw. I

' Mounted on the opposite end portions of the bar'10 outwardly of each ofthe bolts 11 and inwardly of, the'adjacent spring 19 is Va cuff or sleeve 20, the inner or interposed wall of which being ofV a thickness substantially equal to the thickness of the saw blade. By use of these sleeves or cuffs outbowing of the central portion of the bar 10 Ais avoided `when the clamping bolts 11 are tightened and thereby assuring a close contact of the bar 10 at all points along the saw to effecbolt 11 is adjusted lengthwise of vits flange 8 and the bar 10 it is to be understood that the adjacent cuff or sleeve 2O is correspondingly adjusted in order to maintain a maximum of efficiency.

The base 1, as herein disclosed, is provided adjacent its opposite ends with the clamps 21 of a well known type whereby said base may be effectively held to a workbench or the like.

As is well known, the toothed edges of new saws are generally Vdisposed on a slight outward curvature and in order to maintain such curvature when filing a saw it is of importance that the intermediate portion of the base 1 besprungL upwardly to an extent substantially equal to such curvature ofthe toothed edge of the saw. As herein disclosed, the base 1 adjacent the forwardlongitudinal marginal'portion-thereof is provided with a longitudinally directed groove or channel 22 in which is arranged an elongated nietallic strap 23 the extremities of which being slidably engaged, as at 24:, with the headed `holding members .25. Normally the strap 23 is entirely housed or confinedY if within the groove or channel 22 so that no till hinderance or obstruction is offered to the under surface of the base 1. However, when y it is desired to spring upwardlytheyintermediate portion of the base 1, the central Vpart of the strap 23 is forced outwardly to the extent desired. ln the present embodiment of my invention this is accomplished through the medium of the elongated screw 26 threaded inwardly from the rear through the base 1, the inserted end portion of the screw 26 being tapered, as at 27, for contact with the inclined wall 28 provided on the inner face of tlie'stra-p 23 and at preferably the longitudinal center thereof. As the screw 26 is forced inwardly, the central portion of the strap l23 will be moved outwardly and as the bolt or screw 26 is retracted, the inherent resiliency of the strap-23 will cause the same toV return `inwardly of the channel 22. f

Freely mounted on the rod 3 is a carrier C with which is adapted tobe attached .a le holder H or asaw set S. As herein disclosed, the carrier C comprises a barrel v23 snugly surrounding the rod 3 and to which is connected av plate 30 extending beyond opposite sides of the barrel 29V. The base block' 31 of the saw holder, as herein dis closed, has one end portion pivotally connected, as at 32, to the inner or rear end por,-

llO

tion of the plate 3() while the forward por- Y the plate 3 0 so the rholder "H in its ene t'i-rety maybe adjusted at desired anglewith respect tothe saw as the requiremerftsof practice may necessitate. f'

A detailed description of the fiile lrolder is not believed to be necessary as the same is 'fully 'described and illustrated in another application for patent executed on even date herewith.

The saw set S is substantially of a typek now generally in use and is attached only lto the forward or front end portion of the plate 30, said attached portion ofthe set being provided with a lug which extends within a notch 3G in the forward end marginal portion of the plate 30 whereby said setis held against lateral or side movement. i

As herein disclosed, the barrel 29 is provided with a latch mechanism 37 which is adapted to engage within a notch 6 so that the carrier C is maintained in a fix-ed posivtion during the period'the file holder H or the saw set S is in use. After one tooth has4 been operated upon it will be understood that the carrier C will be adjusted along the rod 3 to the next notch and as the vention is particularly well adapted for use by reason of the convenience and facility with which it may be assembledand 'operated, and it will also be obviousthat my invention is susceptible of somech'ange and modification without departing from the principles and spirit thereof and for this reason Ido not wish to vbe understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practice except as hereinafter claimed.l

l. An apparatusV of the class described comprising, in combination, a base, -means coacting with the base for clamping a saw thereto, means for supporting a tool by the base, attaching` means carried by the vextremities of the base, and means operating to el-evate the central portion of the base.

2. An apparatus of the class described comprising. in combinatioma base, means coacting with-the base for clamping a saw thereto, means for supporting a tool by the base, attaching means carried by the extremities ofthe base, a resilient strap underly the base, means for holding thesame to the base, and means for forcingthe central portion of the strap outwardly from the base.

-a'pfparatus'fpf th`e"-clais`s; described comprising, in combination, a base means effecting with the, foryciampnga saw thereto, means for supporting attfool by the' base, attaching;Y--meaqnsy feafrrieelby #the temililes' voifftlre' base, a- )resilient strap' denying thel ease',maasieriwrdiag ai@ same to the base, and means for forcing the i central portion of the strap outwardly from.

- the base, said underface of the base'being provided with a groove in which the strap is normally-housed.

4. An apparatus yofthe class described comprising, in combination, la base, mea-ns coacting with the basev for clamping a` saw thereto, means for supporting a tool by the base, attaching means carried bythe eX- tremities of the base', 'aresilientstrap un` derlying the base, means for holding the same to the base,` the central por-tion of the' strap being Vprovided with an inclined surface, andl a member movable through the base and contacting with saidl inclined surface to force thecentral portion of the strap outwardly of the base.

5. An apparatus. of the class described comprising, in combina-tion', a base, an elongated member resting upon the upper surface' of the base and extending-along va longitudinal marginal portion thereof, said member being provided at its opposite'end .portions with depending flanges, a cla1np. ing bar extending along the adjacent edge of the base andoverlyingthe flanges of the '100. I f

member, clamping screws disposed through the'end portion of the clamping bar and in threaded engagement'with the flanges, 'and auf" means for supporting a tool for engagementV with a saw clamped between thehbar and.v

base.

6. An apparatus ofthe classidescribedi.

comprising, in combination, a base,an elon-l gated m-emberresting upon the upper surface of the base and extending along alongitudinal marginal portion thereof, said member being provided at its opposite end poriV tions with depending flanges, a clampingbar extending -along the adjacent edge of the lbase and overlying the flanges of the member,l

clamping screwsk disposed through the end portions of the clamping bar and inthread ed engagement with the Vflanges, means for supporting a tool for engagement with a saw clamped between thebar and'base, and cuffs mounted upon the b ar outwardly of the clamping screwsfor contact with the l base vwhen the bar'ls inl clamping action'. y

7. VAn apparatus of the class described' comprisingyin combination, abase, an elongated member resting upon the upper sur# face of the lbase and extending along.. alongitudinal marginal portion there-of, .said

member being provided at its oppositev end portionswith depending flanges, a clamping bar extending along the adjacent edges of the base and overlying the flanges of the interposed between the bar outwardly of member, .clamping screws disposed through the clamping screws and the base toV urge the end vportions of the clamping bar .and the bar outwardly. l0

in threaded engagement with kthe flanges of the member, means for supporting a tool signature. for engagement withv a saw clamped between 4Jche barl and base, and expansible members In testimony whereof I hereunto affix my GEORGE DECHEFF. 

